机械加工刀具的表面涂层和摩擦磨损性能研究

Study on Friction and Wear Properties of Coatings on Machining Tool

采用圆形电弧技术和线性离子源技术在高速钢和硬质合金刀具表面制备了类金刚石涂层,对涂层表面形貌和物相组成进行了观察,对比分析了膜层成分和耐磨性能。结果表明,在高速钢和硬质合金表面分别制备了0.84μm和1.23μm厚涂层;对磨过程中Al的粘附量由少至多为:N1涂层<N2涂层<硬质合金基材<高速钢基材,涂层对机械加工刀具基材耐磨性能提高具有明显改善作用。

The diamond coating on high-speed steel and cemented carbide tool surface was prepared by circular arc technology and linear ion source technology, the surface morphology, phase composition and wear resistance of the coating was observed, compared and analyzed. The results show that the thickness of the coatings on high speed steel and hard alloy is 0.84 μm and 1.23 μm, respectively. The order of the adhesion amount of Al in friction process from less to more is N1 coating N2 coating high speed steel cemented carbide substrate. The coating has obvious effect on improving wear resistance of the substrate.